Filters for drinking water; regulating accessories for water or gas apparatus and pipes, namely, gas regulators, pressure regulators for water installations; water filtration and purification apparatus; water purification machines; water intake apparatus namely, for water flow control; water flushing installations namely, flush levers, flushometers; water purification installations; water conduits installations namely, for water flow control; water supply installations namely, for water flow ...

Consulting provided by civil engineers and architects in the field of water distribution engineering and water treatment engineering; Project studies in the nature of engineering research by civil engineers and architects in the field of water distribution engineering and water treatment engineering; chemical research and analysis; Bacteriological and biological research; Providing advice, consultation and information in the fields of chemical, bacteriological and biological research